UTC time | 2019-05-26 07:41:14 |
---|---|
ISC event | 615748456 |
USGS-ANSS | ComCat |
Local date | 2019-05-26 |
Local time | 02:41:12 |
Duration | 60 seconds [1] |
Magnitude | 8.0 Mww |
Depth | 122.8 km (76.3 mi) |
Epicenter | 5°47′46″S75°17′53″W / 5.796°S 75.298°W |
Type | Dip-slip (normal) |
Areas affected | Peru Ecuador |
Max. intensity | VII (Very strong) [2] |
Casualties | 2 dead, 30 injured |
An earthquake measuring Mw 8.0 struck Peru and the surrounding areas on 26 May 2019 at 02:41 local time. It had a maximum perceived intensity of VII (Very strong) on the Modified Mercalli intensity scale in the towns of Yurimaguas and Lagunas. [2] Two people died and a further 30 were injured. It was the strongest earthquake in 2019 by magnitude. [3]
Peru lies above the destructive plate boundary where the Nazca Plate subducts beneath the South American Plate. The plates converge at a rate of 70 mm per year. The country has been affected by many large megathrust earthquakes caused by slip along the plate interface, such as the 1868 Arica earthquake. There are also large earthquakes of intermediate depth caused by faulting within the downgoing Nazca Plate. [4]
The earthquake lasted for about 60 seconds, with most of the energy being released within a period of about 40–60 seconds. [1] The earthquake's epicenter was in the northern region of Peru, near Ecuador. This intermediate depth event (122.8 km) was caused by normal faulting within the Nazca Plate. Out of the two possible solutions of the moment tensor, analysis of seismic waveforms suggests that the causative fault dips towards the east. [1]
The earthquake occurred in a region of the Nazca Plate where it transits from flat slab subduction to steep subduction. At this location, the plate bends to a steeper angle. An analysis of the event indicate rupture along a fault that measured 205 km by 105 km with an average rupture propagation velocity of 2.5 km/s. The rupture generated a maximum slip of 6.7 meters at the northern part of the rupture area. Two episodes of seismic energy release occurred within a span of 115 seconds. InSAR data showed that the quake produced 47 cm of subsidence at the surface of the earth, north of the epicenter. [2]
Exactly three years after the earthquake occurred, a magnitude 7.2 earthquake struck the Department of Puno. The earthquake was felt in Peru, Chile, Brazil and Bolivia. [5]
Two people were killed and 15 others were injured in Peru, while a further 15 people were injured in Ecuador. [6] [7]
The President of Peru, Martín Vizcarra, called for calm and said that he, along with his transportation minister, would evaluate the damage to roadways. Vizcarra also stated that other officials would evaluate damage to structures and any effects on a nearby reservoir. [8] Many people evacuated homes and stores when the earthquake struck late at night. Some buildings, streets, and bridges suffered damage from the earthquake. [9]
The earthquake damaged 833 homes and left 404 of them uninhabitable. 38 health facilities were damaged, with 4 of them being rendered unusable. 111 schools were affected with 7 being put out of action. [10]
Some damage was reported from the parts of Ecuador closest to the epicenter. [9]
The 2007 Tocopilla earthquake occurred on November 14 at 12:40:50 local time. Its epicenter was located between Quillagua and Tocopilla, affecting the Tarapacá and the Antofagasta regions in northern Chile. The earthquake had a moment magnitude of 7.7 and lasted about 3 minutes and 35 seconds. Seventeen aftershocks of magnitude greater than 5.3, including one of magnitude 7.1 and two others of magnitude 6.3 or higher, were recorded. The Pacific Tsunami Warning Center issued a tsunami warning, stating a tsunami had been generated; after one hour, this warning was cancelled. The earthquake was felt from Santiago, 1,245 km south from the epicenter, to La Paz, about 700 km north-northeast.
The 1995 Antofagasta earthquake occurred on July 30 at 05:11 UTC with a moment magnitude of 8.0 and a maximum Mercalli intensity of VII. The Antofagasta Region in Chile was affected by a moderate tsunami, with three people killed, 58 or 59 injured, and around 600 homeless. Total damage from the earthquake and tsunami amounted to $1.791 million.
The 1906 Ecuador–Colombia earthquake occurred at 10:36:10 (UTC+5) on Wednesday January 31, 1906 off the coast of Ecuador, near Esmeraldas. The earthquake had a moment magnitude of 8.8 and triggered a destructive tsunami that caused at least 500 casualties on the coast of Colombia.
The 1997 Punitaqui earthquake occurred at 01:03 UTC on October 15. It had an estimated magnitude of 7.1 Mwc. This earthquake was one of the most destructive in the epicentral area compared to other events of subduction of the same size. The extensive damage to structures was the result of an amplification effect on the ground and the poor quality of building materials, this reflects the potential for damage incurred in an intraplate earthquake with vertical fault and how it can be much greater than what which can cause one of interplate of similar magnitude, and caused severe damage in Chilean cities of La Serena, Vicuña, Ovalle, Illapel and Punitaqui.
The 1998 Bahía de Caráquez earthquake occurred on August 4 at 13:59 local time with a magnitude Mw 7.2. The epicenter was located at 10 km north of Bahía de Caráquez, about 190 km NNW of Guayaquil, and about 215 km W of Quito, Ecuador. The intensity in Bahía de Caráquez reached MM VIII. In Bahía de Caráquez, electricity, telephone, and water services disrupted, and many buildings were damaged. It was felt strongly in Guayaquil and Quito and could be felt in much of Ecuador and in Cali, Colombia. An Mw 5.4 foreshock occurred 1 hour and 24 minutes before the main shock and hence alerted many people. The Nazca Plate is subducting beneath the South American Plate near the Ecuadorian coast. This earthquake was a shallow thrust earthquake in this subduction zone.
The 1979 Tumaco earthquake occurred at 02:59 local time on 12 December with a moment magnitude of 8.2 and a maximum Mercalli intensity of IX (Violent). The epicenter was just offshore from the border between Ecuador and Colombia, near the port city of Tumaco. It triggered a major tsunami, which was responsible for most of the estimated 300–600 deaths. The hardest hit area was Colombia's Nariño Department.
The 1942 Peru earthquake occurred on August 24 at 17:50 local time and was located near the border of the departments of Ica and Arequipa, Peru. It had a magnitude of Mw 8.2 or Ms 8.4.
The 1992 Murindó earthquake occurred on October 18 at 15:11 UTC with an epicenter in the Department of Chocó, northern Colombia. The shallow magnitude 7.2 earthquake struck northwest of the town of Murindó, killing ten and injured more than a hundred. Thirty-three municipalities were severely damaged.
The Valparaíso earthquake of April 2017 was a strong earthquake that shook the cities of Valparaíso and Santiago on Monday, April 24, 2017, at 18:38 local time. Its epicenter was located off the coast of the Valparaíso Region and had a magnitude of 6.9 Mw. On the scale of Mercalli, the earthquake reached an intensity of VII.
On January 1, 1996, at 4:05 p.m. Central Indonesia Time, an earthquake with an epicenter in the Makassar Strait struck north of Minahasa on the island of Sulawesi, Indonesia. The earthquake measured 7.9 on the moment magnitude scale and was centered off Tolitoli Regency in Central Sulawesi, or 25 km from the Tonggolobibi village. A tsunami of 2–4 m (6.6–13.1 ft) was triggered by this earthquake as a result. At least 350 buildings were badly damaged, nine people died and 63 people were injured.
The 2013 Craig, Alaska earthquake struck on January 5, at 12:58 am (UTC–7) near the city of Craig and Hydaburg, on Prince of Wales Island. The Mw 7.5 earthquake came nearly three months after an Mw 7.8 quake struck Haida Gwaii on October 28, in 2012. The quake prompted a regional tsunami warning to British Columbia and Alaska, but it was later cancelled. Due to the remote location of the quake, there were no reports of casualties or damage.
The 1940 Lima earthquake occurred on May 24 at 11:35 a.m. PST with a magnitude of Mw 8.2 on the moment magnitude scale. Shaking from this powerful earthquake was felt throughout the country, and in Ecuador and Chile. An estimated 179 to 300 Peruvians lost their lives while 3,500 left injured by the earthquake. The earthquake was centered near the coastal cities of Huacho and Huaura, about 150 km (93 mi) north of the Peruvian capital, Lima. A tsunami of up to two meters was generated without major damage.
The 1942 Ecuador earthquake or the Guayaquil earthquake occurred on 13 May at 9:06 or 9:13 pm local time with a moment magnitude of Mw 7.9. The temblor struck the coastal (Esmeraldas) region of Manabí Province, Ecuador. It caused damage mainly to cities like Guayaquil, Portoviejo and Guaranda. More than 300 people were killed and the total cost of damage was about US$2.5 million. Ecuador's largest city Guayaquil was the most affected despite the significant distantce from the epicenter. Many reinforced concrete structures in a particular area in the city were completely destroyed, contributing to fatalities.
An earthquake occurred off the coast of the Alaska Peninsula on July 28, 2021, at 10:15 p.m. local time. The large megathrust earthquake had a moment magnitude of 8.2 according to the United States Geological Survey (USGS). A tsunami warning was issued by the National Oceanic and Atmospheric Administration (NOAA) but later cancelled. The mainshock was followed by a number of aftershocks, including three that were of magnitude 5.9, 6.1 and 6.9 respectively.
On 9 July 2019, at 8:36 PM (PST), an earthquake measuring Mw 5.6 jolted the province of North Cotabato, Davao del Sur, and other nearby provinces. The National Disaster Risk Reduction and Management Council reported one dead and three injured in Makilala after the earthquake, and a total of 164 families affected in Cotabato Province. Near the epicenter of the earthquake, the severity of strong ground motion was assigned VI (Strong) on the Modified Mercalli intensity scale. A total of 106 schools, 119 houses, and 14 other infrastructures were damaged by the earthquake.
The 1950 Calama earthquake occurred near the Argentina–Chile border with an epicenter near Calama, Chile in the Atacama Desert on December 9. The event had a hypocenter depth of 113.9 km, beneath the Caichinque volcanic complex. It measured magnitude Mw 8.2 on the moment magnitude scale, making it the largest intermediate depth earthquake ever recorded on Chilean soil. One person was killed and an unspecified number of people were injured in Calama.
A major earthquake struck northern Peru on November 28, 2021, 5:52 a.m. local time with a magnitude of 7.5 on the moment magnitude scale between the Amazonas and Loreto departments of Peru. A maximum Modified Mercalli intensity (MMI) of VII was reported in the town of Santa Maria de Nieva according to the Geological Institute of Peru.
The 2012 Constitución earthquake was recorded on March 25, 2012, at 7:37 pm local time. It had a moment magnitude of 7.1 and its epicenter was located 23 km (14 mi) northeast of the city of Constitución, in the Maule Region, Chile. According to experts, it was a strong and late aftershock of the Great Chile earthquake of February 27, 2010.
A strong earthquake struck southern Ecuador on 18 March 2023. It measured 6.8 on the moment magnitude scale, and struck with a hypocenter 65.8 km (40.9 mi) deep. The epicenter was located in the Gulf of Guayaquil, just off the coast of the canton of Balao and some 80 kilometres (50 mi) south of the city of Guayaquil. It caused major damage, with 446 injuries and 16 fatalities in the provinces of El Oro, Azuay and Guayas, while two additional fatalities and dozens of injuries were reported in Peru.